.back{
	background:url(../login-bg.jpg) center center;
	width:50%;
	height:60%;
	background-size:cover;
	overflow:hidden;
	filter:alpha(opacity=50);
}

body{
    width:100%;
	height:100%;
	margin:0;
	padding:0;
	background:url(../22.jpg) center center;
	background-size:cover;
	overflow:hidden;
	}

	
	a:link{color:green;text-decoration:none}
	a:visited{color:red;text-decoration:none}
	a:hover{color:blue;text-decoration:underline}
	a:active{color:yellow;text-decoration:underline}
	
	
	
	
	
	
	